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CVE-2026-100612— Capgo SSO Provider ID Authentication Bypass via Incomplete Migration

Quick assessment

Affected
Cap-go capgo.app
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Capgo（capgo.app）在 12.261.0 及之前版本中存在一个针对 public.sso_providers 表的不完整访问控制修复。迁移脚本 安装了一个 触发器（ ），该触发器仅冻结 、 、 和 字段，而 （以及 和 ）仍保持可写状态。由于该表对 和 角色授予了 权限且无列级限制，且 PostgreSQL 行级安全策略（如 ）仅限制可更新的行，而不限制可更新的列，因此持有 权限的 角色用户可以通过 PostgREST 向 PATCH 请求中的 字段注入受其控制的身份提供商（IdP）。由于 是将电子邮件

CVSS 7.2 · High EPSS 0.34% · P24
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I. Basic Information for CVE-2026-100612

Vulnerability Information
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Vulnerability Title
Capgo SSO Provider ID Authentication Bypass via Incomplete Migration
Source: CVE Program / CVE List V5
Vulnerability Description
Capgo (capgo.app) through version 12.261.0 contains an incomplete access-control fix for the public.sso_providers table. Migration 20260826100000_sso_providers_block_direct_active_insert.sql installs a BEFORE UPDATE guard (enforce_sso_provider_client_update_guard()) that freezes only the dns_verified_at, domain, status and enforce_sso columns; provider_id (as well as metadata_url and attribute_mapping) is left writable. Because the table is granted ALL to the anon and authenticated roles with no column-level restriction, and PostgreSQL row-level security policies such as allow_org_admins_update_sso_providers constrain only which row may be updated and not which columns, a user holding the org_admin tier permission org.update_settings can PATCH provider_id over PostgREST to an identity provider under their control. Since provider_id is the trust anchor binding an email domain to an authorized IdP, the attacker can then authenticate through their own IdP while asserting the org owner's email; the server-side provider match succeeds and the merge routine attaches the attacker's SSO identity to the existing owner account, nulls its password, and deletes its other identities and sessions. This results in vertical privilege escalation from org_admin to org owner/super_admin, account takeover, and lockout of the legitimate owner. Exploitation requires that the target organization has an active SSO provider configured and that the attacker already holds org_admin in that organization. No patched version is available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cap-go capgo.app - -

II. Public POCs for CVE-2026-100612

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III. Intelligence Information for CVE-2026-100612

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Vendor Advisories for CVE-2026-100612 (1)

Other References for CVE-2026-100612 (1)

Same Patch Batch · Cap-go · 2026-09-26 · 19 CVEs total

CVE-2026-100619 8.8 HIGH Capgo OTA Manifest Poisoning via app_versions.manifest Bypass
CVE-2026-100614 8.8 HIGH Capgo before 12.244.1 Cross-Tenant Image Overwrite via Metadata Worker
CVE-2026-100623 8.8 HIGH Capgo Authentication Bypass via Direct PostgREST org_users Table Write
CVE-2026-100617 8.8 HIGH Cap-go capgo.app Authorization Bypass via channel_permission_overrides
CVE-2026-100615 8.8 HIGH Cap-go capgo.app before 12.267.1 Privilege Escalation via API Key Rotation
CVE-2026-100618 8.5 HIGH Capgo App Icon Update Privilege Escalation via Service-Role Worker
CVE-2026-100627 8.1 HIGH Capgo bundle promotion API channel RBAC deny override bypass
CVE-2026-100622 7.5 HIGH capgo.app through 12.129.0 Cache Restoration of Deleted Bundles
CVE-2026-100625 7.1 HIGH Capgo Build Upload Proxy Authorization Bypass via TUS Resource
CVE-2026-100611 6.5 MEDIUM Capgo apikey_manager Role Privilege Escalation via Incomplete Role Deny-list
CVE-2026-100629 5.5 MEDIUM Capgo backend before 12.127.5 Privilege Escalation via role_bindings PATCH
CVE-2026-100616 5.5 MEDIUM capgo.app Authentication Bypass via PostgREST customer_id Mutation
CVE-2026-100624 5.4 MEDIUM Capgo.app before 12.264.5 Upload Expiry Bypass via build upload
CVE-2026-100613 5.3 MEDIUM capgo.app Authorization Bypass via Stale Channel Permission Overrides
CVE-2026-100626 4.3 MEDIUM capgo through 12.128.2 IDOR via PUT /app icon endpoint
CVE-2026-100628 4.3 MEDIUM capgo.app before 12.128.12 Authentication Bypass via apikey
CVE-2026-100621 4.3 MEDIUM capgo.app Content-Lock Bypass via r2-direct Bundle Mutation
CVE-2026-100620 3.8 LOW Capgo CLI through 7.98.2 Excessive Permissions via Overpermissioned Play Console Service A

IV. Related Vulnerabilities

Same product: capgo.app
Same vendor: Cap-go
Same weakness: CWE-639

V. Comments for CVE-2026-100612

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